Causes of Nephrotic Syndrome.

Primary Glomerular Disease

Membranous glomerulopathy

Minimal change disease

Focal segmental glomerulosclerosis

Membranoproliferative glomerulonephritides

Other proliferative glomerulonephritis (focal, "pure mesangial," IgA nephropathy)

Systemic Diseases

Diabetes mellitus

Amyloidosis

Systemic lupus erythematosus

Drugs (nonsteroidal anti-inflammatory, penicillamine, "street heroin")

Infections (malaria, syphilis, hepatitis B and C, acquired immunodeficiency syndrome)

Malignant disease (carcinoma, lymphoma)

Miscellaneous (bee-sting allergy, hereditary nephritis)